Bug Fixes

• core: fix initial slide index shift with centeredSlides and slidesPerView auto (#7319) (cae9c2d)
• history: fix setting history in virtual slides (d4de17b), closes #7327
• react: make sure the key is unique in virtual mode (829a253), closes #7329

Features

• add swiper-effect-utils (df5f873), closes #7336
• zoom: add ability to constrain max zoom to 100% of original image size (#7311) (645f266)